Lock.



No. 823,987. PATBNTBD JUNE 19, 190. B. 0. BERNTSEN. LOOK. urmumwn Pusan suv, 17. 1904.

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PATENTED JUNE 19, 1906.

B. 0. BERNTSEN.

LOCK.

APPLIUA'HQN FILED Nov. 11. 1904.

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UNITED STATES PATENT OFFICE.

Specification of Lettere Eatent.

Patented J une 19, 1906.

Application liled November 17; 1904. Serial No. 233,203..

To a/ZZ whom it may concern:

f Beit known that I, BERNT O. BERNTSEN, a citizen of the United States, residing at Port Richmond, in the county of Richmond and State of New York, have invented new and useful Improvements in Locks, of which the following 1s a specification.

This invention relates to locks such as are adapted to be applied to childrens banks or to safe-de osit boxes and the like.

The objects of the invention are to improve and simplify the construction of such devices; furthermore, to decrease the expense attending their manufacture.

With the foregoing and other minor objects in view, which will appear as the description roceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed as a practical embodiment thereof.

n the accompanying drawings, forming part of this specification, Figure 1 is a plan view of a lock constructed in accordance with the invention, Fig. 2 is a similar view showing the cover-plate removed and the' lock fitted into the upper end of a suitable box. Fig. 3 is a vertical section on the line 3 3 of Fig. 1, the upper ortion of the box to which the lock is a plie being shownV inseetion. Fig. 4 is a pln View, partly in section, of a modied lock suitable for use upon a round receptacle. Y Fig. 5 is a vertical section on the line 5 5 of Fi 4. Fig. 6 is a similarV view on the line 6 6 o Fig. 4. Fig. 7 is a perspective view of a tumbler-disk, spindle, and knob. Fig. 8 is a plan view of the under side of the look illustrated in Fi 4. Fig. 9 is a plan view of the movable p ate used in connection with the lock illustrated in Fi@r 4. Y Y

Fig. 10 is a similar view of the movable plate used in connection with the lock illustrated in Fig. 1.

Like referencenumerals indicate correspending parts in the diderent views.

The improved lock of this invention is adapted to be used in connection with a box or. receptacle l, having inwardl T-pro'ecting flanges 2 and 3 at its upper en s. he irnroved lock itself comprises a bottom plate 4, having upwardly-bent side anges 5 and 6, which are formed with sockets to receive screws or other suitable fastening devices for securing in position the cover-plate S. Disposed between the bottom plate 4 and the cover-plate 8 is a movable plate 9, preferslots 10 is a tumbler-disk, such as 12, (lllus- 65 trated in Fig. 7,) each of said tumbler-disks being formed in its peripher with a notch or slot 13, Connected wit each of the tumbler-disks 12 and extending upwardly through a suitable perforation in the cover- 7o plate 8 is a s iindle 14, with which is connected a suita le knob 15, adapted to be used in turning the tumbler-disk to pro er osition in opening the box. Connects' Wit the central portion of the movable plate Q is a spindle 16, which projects upwardlv through an elongated slot 17 in the cover-plate 8 and is provided on its up er end with a knob 1,8. A plurality of teetlii or projections 19 is formed upon a downward extension at the 8o forward end of the movable plate Q, as illus trated in Fig. 10 of the drawings. The location of the teeth or projections i9 on the downward extension 20 positions the teeth for engagement with the under side of the R5 ilange 2.

Constructed as above described the o eration of the improved look is as fol ows: When all of the tumbler-disks 12 are turned into such position that the notches 13 are op- 9o posite the pro'ections 11, it is possible to slide the Inova `le plate 9 toward the right in F ig. 2 by grasping the knob 18 and forcing it in the proper direction, this movement of the plate 9 being permitted by the entrance of 95 the projections l1 into the notches 13 of the several tumbler-disks. The lock may then be engaged with the flanges 2 and 3 of the Yboa. by litting'the bottom and cover plates 4 and 8 over the flange 3, the look as a whole ico being prevented from descending into the box by reason of the fact that the cover-plate rests upon the u per edge thereof. When the ilangc 3 of tlge box 1 is fitted between the bottom and cover plates, as illustrated m5 in Fig, 3, the lock can be retained in place by forcing the knob 18 toward the left until the teeth or projections 19 engage beneath the ilange 2. B v then turning the tumbler-disks until the notches therein are out of register rio with the projections 11 the movable plate is locked securely in advanced position.

late in the manner hereinafter 6c The modified form of lock illustrated in Fig. 4 is adapted for a plication to a round receptacle. The roun receptacle, which is designated by 21, is provided at proper intervals with inwardly-projecting teeth or fianges 22 and with inwardly-projecting ribs 23. The bottom late 24 of the lock is rovided with upward y-projecting segmental flanges 25, having sockets therein to receive screws for holding in position the coverlate 26. The bottom plate 24 is also formed 1n its peripher with notches 27, which permit it to pass t e inwardly-projecting teeth or flanges 22 when fitting the lock upon the receptacle. Furthermore, the bottom plate 24 is provided in its eriphery with suitable notches 28, adapted to straddle the ribs 23 of the receptacle, said ribs and notches serving effectually to prevent any rotation of the bottom plate with respect to the receptacle. The movable plate 29 in this form of the invention preferably is in the form of a Maltese cross having an elongated slot 30 and a projection 31 formed in each of its extremities, as shown clearly in Fig. 9. Located in each of the elongated slots 30 is a tubular disk, such as illustrated in Fig. 7. The rotation of the movable plate 29 is produced by means of a knob 32, which is connected therewith by means of a spindle 33.

The operation of the form of invention illustrated in Fi 4 is as follows: By turning the tumbler-dis s until the notches therein are dis osed opposite the projections 31 the movab e plate can be rotated until the outer extremities thereof are disposed out of line with the inwardl -eXtending flanges 22 ofthe receptacle 21. he lock can then be inserted into the upper end of the receptacle, after which by turning the knob 32 in reverse direction the plate 29 is reversely rotated and the outer extremities are directed beneath the flanges 22, thus locking the receptacle.

From the foregoing description it will be apparent that the lock of this invention is adapted to form a cover for a receptacle. Any suitable arrangement of numbers or symbols may be placed upon each of the knobs 15 of the tumbler-disks and upon the cover-plate in order to produce a permutation-lock.

Changes in the recise embodiment of invention illustrated3 and described ma be made within the sco e of the following c aims -without departing fom the spirit of the invention or sacrificing an of its advantages.

Havin thus describe the invention, what is claime is- 1. The combination with a receptacle provided with an inturned flange, of a combined lock and cover for the receptacle comprisin a cover-plate resting upon the u per edge o the receptacle to support the loc in applied position, a bottom plate smaller than the cover-plate and provided with upturned flanges to which the cover-plate is secured, a movable plate mounted between the cover and bottom plates, means for operating the movable plate to bring it into engagement with the under side of said flange, and means for locking the movable plate in engagement with the under side of said flange.

2. The combination with a receptacle provided With inturned flanges, of a combined lock and cover therefor comprising a coverplate adapted to rest u on said flanges, a

ottom plate provided with upturned flanges to which the cover-plate is secured, said bottom plate being smaller than the cover-plate and adapted to be brou ht into engagement with the under surface o one of the flan es of the casing, a movable plate mounte between the cover and bottom plates, means for operating the movable plate to move it into enga ement with the under surface of the other ange of said casing, and means for locking the movable plate in engagement with the last-named flange.

3. Alockcomprisin acasing,havingabottom )late formed wit 1 upwardlyrojecting side anges, a slidin plate dispose upon the bottom plate and a apted to be guided in its movement by said fianges, said sliding plate havin a pluralit of elongated slots therein, each formed wit a projection adjacent to one end, a disk located in each of said slots and having a notch in the periphery thereof to receive the adjacent projection, a coverplate secured upon the flanges of the bottom plate and having a slot therein, a knob having a spindle projecting through the slot in the cover-plate and bein fastened to the sliding plate, a plurality o knobs cach having a spindle extending throu h the cover-plate into one of the tumbler-disks, and a downward extension upon the sliding plate, said downward extension lyin in the same plane with the bottom plate an being formed with teeth or projections.

4. The combination with a rece tacle provided with a fiange, of a lock for tllfe receptacle comprising a cover-plate adapted to sup port the lock in applied position, a bottom plate secured to the cover-plate and spaced therefrom, a movable plate mounted between the cover-plate and bottom plates, means for operating the movable plate to bring it into engagement with the under side of said flange, an means for locking the movable plate in engagement with the under side of said flange.

In testimony whereof I affix my signature in presence of two witnesses.

BERNT O.' BERNTSEN.

Witnesses:

FRANK 0. NICHOLSON, ANDREW KRIsTENsEN.

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